Hello dear codeforces

Today, someone unburied a cadaver for me, that is, "Well, I think pretests should not be a guarrantee" and what not. And I think finally there should be a clear blog post where we should be to debate specifically which is "better*": weak pretests or strong pretests.

I await to see how each matter is argued, hopefully I and others could have something to learn from this,

Francisc

*: from a contest quality and overall quality perspective